MAC address in ifPhyAddress

Hi all,

I'm having some trouble interpreting the data type for ifPhysAddress for 
the ifTable. I get that if a 6 byte data format and it seems ok in the 
code. But the agent crashes when i walk the ifTable. In th agent I 
interprete the mac address as an octet string but it doesn't seem to be 
returning the right length. I know i'm missing a line but where?

Code :
char mac_addr[6];
memcpy(sysinfo.mac_addr,(unsigned char *) &if_hwaddr.ifr_hwaddr.sa_data,6);
//adding ifPhysAddress into the ifTable spcifying type TR_MIB_STR to be 
interpreted by the agent  
tr_mib_add_item(context, 6, "mac", "physical address", 
TR_MIB_STR,TR_MIB_RO, NULL, NULL, NULL, 0, 0, &(sysinfo.mac_addr), 0);

Agent code :
case TR_MIB_STR :
value = (char *) val->s;
        if (!value) {
            value = "";
        }
        TR_DEBUG_D(TR_SNMP_DEBUG_REQ, "Returning value type 
ASN_OCTET_STR, value %s", value);
        snmp_set_var_typed_value(idx, ASN_OCTET_STR, value, strlen(value));

Thanks!! Any feedback is greatly appreciated.

Syikin


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